1. School of Community Medicine and Primary Care, Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia , Modena , Italy
2. School of Hygiene and Preventive Medicine, Department of Health Sciences, University of Florence , Florence , Italy
3. Department of Medicine and Surgery, University of Parma , Parma , Italy
4. Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia , Modena , Italy
5. Department of Health Sciences, University of Florence , Florence , Italy
6. Regional Center for Multimedial Learning in Health Promotion, Italian League Against Tumors , Reggio Emilia , Italy
7. Department of Sociology and Social Research, University of Trento , Trento , Italy